An ink jet printing ink includes a colorant selected from acid dyes and reactive dyes, an organic solvent, and water. The organic solvent has a solubility parameter value greater than or equal to 11 and less than or equal to 13.5. The organic solvent also has a viscosity, at 20° C., greater than or equal to 10 mPa.Math.s and less than or equal to 180 mPa.Math.s.

Described herein is an ink solution, comprising: i. a composition having the formula ABX.sub.3; ii. a compound having the formula NH.sub.2—R.sub.1—NH.sub.2; and iii. a solvent. Methods for producing polycrystalline perovskite films using the ink solutions described herein in a fast blading process and the use of the films in photoactive and photovoltaic applications are additionally described.

Described herein is an ink solution, comprising: i. a composition having the formula ABX.sub.3; ii. a compound having the formula NH.sub.2—R.sub.1—NH.sub.2; and iii. a solvent. Methods for producing polycrystalline perovskite films using the ink solutions described herein in a fast blading process and the use of the films in photoactive and photovoltaic applications are additionally described.

An ink includes water, a compound represented by the following Chemical formula 1, Pigment Red 269 represented by the following Chemical formula 2, and alkylene glycol alkyl ether, wherein the proportion of the compound represented by the following Chemical formula 1 in a total amount of the Pigment Red 269 is 2 or less percent by mass. ##STR00001##

An ink includes water, a compound represented by the following Chemical formula 1, Pigment Red 269 represented by the following Chemical formula 2, and alkylene glycol alkyl ether, wherein the proportion of the compound represented by the following Chemical formula 1 in a total amount of the Pigment Red 269 is 2 or less percent by mass. ##STR00001##

A dispersion contains water, a color material, and a dispersing resin that disperses the color material, the dispersing resin having a structural unit A containing a hydrophobic monomer, a structural unit B containing a hydrophilic acrylic acid monomer, and a structural unit C containing a sulfonic acid group-containing acrylamide monomer, where the dispersing resin has a weight average molecular weight of from 5000 to 100000 and a content of the structural unit A is 60 mol % or more with respect to a total amount of the dispersing resin.

A dispersion contains water, a color material, and a dispersing resin that disperses the color material, the dispersing resin having a structural unit A containing a hydrophobic monomer, a structural unit B containing a hydrophilic acrylic acid monomer, and a structural unit C containing a sulfonic acid group-containing acrylamide monomer, where the dispersing resin has a weight average molecular weight of from 5000 to 100000 and a content of the structural unit A is 60 mol % or more with respect to a total amount of the dispersing resin.

A fabric coating composition, comprising from 2 to 50 dry parts of a crosslinking polymer, from 5 to 60 dry parts of a polymeric binder; from 2 to 30 dry parts of pigment fixation agents, parts are based on total dry content of the coating composition; a pH control agent in an amount adjusted to have a pH above 7; and an aqueous liquid vehicle is described. The coating composition is used to be applied to a fabric print medium. Also described herein are a coated fabric printable medium, a method for forming the coated fabric printable medium and a method of textile printing that includes ejecting an ink composition onto the coated fabric print medium described herein.

A fabric coating composition, comprising from 2 to 50 dry parts of a crosslinking polymer, from 5 to 60 dry parts of a polymeric binder; from 2 to 30 dry parts of pigment fixation agents, parts are based on total dry content of the coating composition; a pH control agent in an amount adjusted to have a pH above 7; and an aqueous liquid vehicle is described. The coating composition is used to be applied to a fabric print medium. Also described herein are a coated fabric printable medium, a method for forming the coated fabric printable medium and a method of textile printing that includes ejecting an ink composition onto the coated fabric print medium described herein.

An ink composition includes a resin-coated pigment in which at least a part of pigments is coated with a cross-linked resin, a betaine compound (1) represented by Formula (1), and water. R.sup.1 represents an alkyl group having 6 to 20 carbon atoms, R.sup.2 and R.sup.3 each independently represent a chain hydrocarbon group having 1 to 3 carbon atoms, L.sup.1 represents a single bond or a divalent linking group, L.sup.2 represents a divalent linking group, and A.sup.− represents a —SO.sub.3.sup.− group or a —COO.sup.− group.

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